<template>
  <div>
    <el-row :gutter="10" type="flex" justify="end">
      <el-select v-model="currentYear" style="width:120px;margin-right:10px;" size="small" @change="changeDate">
        <el-option
          v-for="item in yearList"
          :key="item"
          :label="item"
          :value="item"
        />
      </el-select>
      <el-select v-model="currentMonth" style="width:100px" size="small" @change="changeDate">
        <el-option
          v-for="item in 12"
          :key="item"
          :label="item"
          :value="item"
        />
      </el-select>
    </el-row>
    <el-calendar v-model="date">
      <template slot="dateCell" slot-scope="{date}">
        <div class="date-content">
          <span class="text">{{ date.getDate() }}</span>
          <span v-if="isWeek(date)" class="rest">休</span>
        </div>
      </template>
    </el-calendar>
  </div>
</template>

<script>
export default {
  name: 'Calendar',
  props: {
    // 开始的日期时间
    startDate: {
      type: Date,
      default: () => new Date()
    }
  },
  data() {
    return {
      date: this.startDate,
      currentYear: this.startDate.getFullYear(),
      currentMonth: this.startDate.getMonth() + 1
    }
  },
  computed: {
    yearList() {
      return Array.from(Array(11), (value, index) => this.currentYear + index - 5)
    }
  },
  methods: {
    isWeek(date) {
      return [6, 0].includes(date.getDay())
    },
    changeDate() {
      this.date = new Date(`${this.currentYear}-${this.currentMonth}-1`)
    }
  }
}
</script>

<style lang="scss" scoped>
  ::v-deep .el-calendar-day {
    height: auto;
  }
  ::v-deep .el-calendar-table__row td,
  ::v-deep .el-calendar-table tr td:first-child,
  ::v-deep .el-calendar-table__row td.prev {
    border: none;
  }
  .date-content {
    height: 40px;
    text-align: center;
    line-height: 40px;
    font-size: 14px;
  }
  .date-content .rest {
    color: #fff;
    border-radius: 50%;
    background: rgb(250, 124, 77);
    width: 20px;
    height: 20px;
    line-height: 20px;
    display: inline-block;
    font-size: 12px;
    margin-left: 10px;
  }
  .date-content .text {
    width: 20px;
    height: 20px;
    line-height: 20px;
    display: inline-block;
  }
  ::v-deep .el-calendar-table td.is-selected .text {
    background: #409eff;
    color: #fff;
    border-radius: 50%;
  }
  ::v-deep .el-calendar__header {
    display: none;
  }
</style>

